Two-piece plastic wheel for lightweight automobiles

摘要

A wheel for a lightweight plastic automobile includes a unitarily-molded outboard plastic rim defining an inboard-oriented engagement surface and a unitarily-molded inner plastic rim defining an outboard-oriented engagement surface. The engagement surfaces are conformed alike so as to interlock together, and the surfaces are adhesively bonded together to establish a strong, compliant wheel. Rivets further connect the rims to prevent the rims from peeling apart. The wheel is mounted on the automobile by a plurality of lug nuts, each of which is integrally formed with a washer having a large surface area. The large surface area of the washer permits firmly tightening the lug nuts while avoiding "scalloping" of the plastic wheel when the washers are tightly urged against the wheels.